chore: Use metrics separated with a _ instead of a :
This is second first step in switching to metrics separated with an _ as recommended in the Prometheus best practices:
Note: The colons are reserved for user defined recording rules. They should not be used by exporters or direct instrumentation.
https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels
This starts using the metrics that are currently being emitted from the applications, since:
- gitlab-org/gitlab!90977 (merged)
- https://gitlab.com/gitlab-org/customers-gitlab-com/-/merge_requests/4983
Currently the application is emitting both versions: separated with
_ and separated with :. This starts using the metrics with a
_. After we merge this, we can remove the old version from the
application.
Edited by Bob Van Landuyt